Unit 6 Review

Using a fair coin and a number cube with faces numbered 1 through 6, what is the probability of getting tails and rolling a 4? (Answer as a fraction/decimal/percent)

• 1/6 = .17 = 17%

• 1/2 = .5 = 50%

• 1/12 = .08 = 8%

• 1/8 = .13 = 13%

Hugo is flipping a fair coin. His first two flips landed on tails while the next four landed on heads. What is the probability that his next flip will be tails? (Answer as a fraction/decimal/percent)

• 1/4 = .25 = 25%

• 1/2 = .5 = 50%

• 1/6 = .17 = 17%

• 1/8 = .13 = 13%

• x = 98

• x = 76

• x = 60

• x = 19

Part A

• 3/8 = .38 = 38%

• 6/8 = .75 = 75%

• 9/64 = .14 = 14%

• 6/64 = .09 = 9%

Part B

• X = 120

• X = 30

• X = 2

• X = 25

Rosie has 15 red chips and 5 blue chips in a bag. What is the probability that she will randomly pick a red chip from the bag on her first try? (Answer as a fraction/decimal/percent)

• 1/3 = .33 = 33%

• 15/20 = .75 = 75%

• 1/4 = .25 = 25%

• 3/4 = .75 = 75%

Mark made a cube and marked each side with numbers. The numbers are 1, 2, 3, 3, 4, 5. If he rolls the cube twice, what is the probability that the sum of the numbers will be 5?

• 1/6 = .17 = 17%

• 2/9 = .22 = 22%

• 6/25 = .24 = 24%

• 1/4 = .25 = 25%

Kira put cards with the numbers 1, 2, 3, 4, and 5 on them in a bag. Kira picks 2 cards out of the bag at the same time. Which best describes the probability that the sum of the 2 cards will be 2?

• Likely

• Unlikely

• Very Likely

• Certain

The table above shows the outcomes of two spinners and their sums. What is the theoretical probability of spinning two numbers with a sum of 7?

• 6/36 = .17 = 17%

• 1/2 = .5 = 50%

• 1/6 = .17 = 17%

• 1/3 = .33 = 33%